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Activity Webinar Series

This series of webinars presents individual activities with complete do-it-yourself guidance.
They are usually held on the fourth Tuesday of each month at 2:30pm Eastern time.
Hosted by Leigh Slauson, Capital University.

CAUSE webinars are made possible by generous contributions from:

Freeman Publishing

JMP® software from SAS

Minitab Inc.

Pearson Higher Education

"Golfballs In The Yard - Using Simulation To Teach Hypothesis Testing"
with Randall Pruim, Calvin College

January 25th, 2011

One challenge in any introductory statistics course is helping our students understand the logic of hypothesis testing. In this webinar I'll demonstrate one of my favorite examples for doing this. The data are a sample of golfballs. The hypothesis is that the number on a golfball is equally like to be a 1, 2, 3, or 4. Using a function written in R, I allow students to design their own test statistics and then produce a graphical display of the sampling distribution and calculate empirical p-values. This activity can be used in introductory classes at all levels - even if you don't cover goodness-of-fit testing. It can be used as a first introduction to inference, as a motivation for the chi-squared test statistic, as an example of goodness of fit testing, or as a demonstration of simulation-based inference.